Locomotive turn-table



4 Sheets-Sheet 1.

(No Model.)

B. LYON.

LOGOMOTIVE TURN TABLE.

No. 359,220. Patented Mar.- 8, 1887.

witr essea ItP/Et Tur (No Model.) 4 Sheets--Sheet 2. E. LYON.

LOGOMOTIVE TURN TABLE.

Patented Mar. 8, 1887.

I'll.

r LE w il-E ====iII Im-====.

(No Model.)

4 Sheets--Sheet 3. E. LYON.

LOGOMOTIVE TURN TABLE.

Patented Mar. 8, 1887.

3 S 1 ET 5 [;[%225E5 R Irv/a tar;

O N M QZMMMyV' x (No Model.) 4 Sheets-Sheet 4.

E. LYON. LOGOMOTIVE TURN TABLE.

No. 359,220. PatentedMar. 8, 1887.

Wit E55E5 032% WWW 5 UNITED STATES PATENT OFFICE.

EDMUND LYON, OF ROCHESTER, NEWV YORK.

LOCOMOTIVE TU RN-TABLE.

SPECIPZCATION forming part of Letters Patent No. 359,220, dated March 8, 1887.

Application filed March 22, 1866. Serial No. 196,183. (No model.)

To aZZ whom, it may concern:

Be it known that I, EDMUND LYON, a citizen of the United States, residing at Rochester, Monroe county, and State of New York, have invented certain new and useful Improvements in Locomotive Turn-Tables, of which the fol-' lowing is a specification.

My invention relates to the construction of locomotive turn-tables, and the object is to afford a feasible way of operating or rotating a turntable by means of the locomotive run thereon. I attain this object by employing friction-wheels which are adapted to receive motion from the drive-wheels of the 10- comotive, gearing to utilize this motion for the purpose of rotating the turn-table, and also looking and blocking devices. All of this mechanism is illustrated in the accompanying drawings, in which a Figure 1 is a vertical section of the pit and a vertical central longitudinal section of the turn-table. Figs. 2 and 3 are plan views. Fig. 4 is a cross-section in line 1 1 of Fig. 1. Fig. 5 is a vertical section in line2 2 of Fig. 2. Fig. dis a vertical section of the shaft S in line 3 3 of Fig. 3.

Similar letters refer to similar parts through out the several views.

A represents the frame, and B the central step or bearing, of a locomotive turn-table. At or about the places occupied by the drivewheels of alocomotive when the latter is run on the turn-table the rails are removed, and in lieu thereof are employed sets of frictionwheels D E, whose upper edges are in line with the lap of the rail and whose axles (l e rest horizontally in suitable hearings in the frame A. These friction-wheels are adjusted so that they overlap each other, and thereby ever, is not essential to the operation of the motive mechanism.

One end of the shaft G is geared to the axle d by the cog-wheels d g. A duplicate of this shaft, with its gearings, may be employed in the other half of the turn-table, as indicated; but such duplication is not a matter of necessity. The lower end of the shaft G is provided with the cog-wheel'g, which meshes with the stationary circular rack H under the table. This rack is protected from slush, ashes, 850., by being inverted and having the coveringflange h.

The lower portion of the shaft G is supported by the bearing J, which is held laterally in position by the brace I, but is otherwise controlled by the connecting-rods K K and lever L. By this lever the bearing J may be lowered and the cog-wheel g thrown out of gear with the rack H when the turn-table is to be rotated by other means than the motive mechanism.

To prevent the ungearing of the cog-wheel g by the rocking of the frame A, the spiral spring 7c is employed on the upper end of the rod K, which keeps it constantly in contact with the rack. Concerning the arrangement of this spring more will present-1y be said.

Both the locking and the blocking devices are operated from the locomotive by means of the inclined lever M, which is a part of a sys tem of levers and connecting-rods so arranged that the act of unlocking the turn-table blocks the drive-wheels of the locomotive, and vice versa.

At its lower end the lever M is fulcrumed to the frame A, and a little higher up passes through an elliptical opening in the connectingrod N, which is journaled to the connectingrod 0.

event one end of the spring 8 will rest against the connecting-rod O. A similar arrangement holds the spiral spring 7; in place. To the outer end of the lock-shaft S is journaled the horizontal wheel 8.

The block T is substantially U-shaped in cross section. Its lower limb rests on the frame A between the guides a a, which hold it laterally in position. Its upper limb is furnished with the horizontal rollers 15 t, which lie at right angles to the track. The under surface of the upper limb is on a level with the top of the track, so that when the block is drawn toward it the rail is embraced by the two limbs of the block.

When a locomotive is to be turned, the looking and the blocking devices are arranged as shown in Figs. 1 and 2, which is the position for receiving or discharging a locomotive.

After the' locomotive has been run on the turn-table and its drive-wheels rest upon the friction-wheels, the upper end of the lever M is drawn toward it, causing the locking and the blocking devices to assume the position indicated in Fig. 3. The drive-wheels are then allowed to revolve slowly, which, being prevented from advancing by coming in contact with one of the rollers of the block T, set the friction-wheels in motion, the shaft G revolves, the cog-wheel g travels along the rack H, and the turn-table begins to rotate. On nearing the desired place for discharging the locomotive the steam is shut off and the upper end of the lever M pressed steadily outward. This forces the wheel 8 against the inside of the pit around which it travels, readily passing all irregularities until it reaches and enters the V-shaped socket V. As the inertia of the turn-table urges it up the opposite incline of the socket the spiral spring 8 is compressed and the table brought gradually to a standstill without experiencing any shook. \Vith the expansion of the spiral springs the wheel 8 is compelled to retreat into the angle of the socket, and the turn-table is permitted to assume a proper position for discharging the locomotive.

Having described my invention, what I de sire to claim, and secure by Letters Patent, is

1. The combination, with a turntable, of frictiou-wheels having horizontal axes and being adapted to receive motion from a locomotive-engine on said table, said friction-wheels being so adjusted that two of them at a time may be in contact with the same drive-wheel, and suitable gearing connected with the turntable, whereby the table may be turned by said engine, substantially as shown and described.

2. The combination, with a turn-table, of friction-wheels having horizontal axes and being adapted to receive motion from a locomotive-engine on said table, said friction-wheels being so adjusted that those adjacent overlap each other, and suitable gearing connected with the turntable, whereby the table may be turned by said engine, substantially as shown and described.

3. Aturn-tablc having frictionwheels whose axes are horizontal, in combination with gearing and a stationary circular rack, said friction-wheels being operated by the drive-wheels of the locomotive-engine on the table, and the gearing connecting with the rack, whereby the table is turned, substantially as shown and described.

4. The combination, with a turn-table adapted to be turned by a locomotive-engine resting thereon, of a stationary inverted rack, and gearing of the turn table, constructed substantially as described, engaging with the rack, substantially as and for the purpose specified.

5. The combination, with a railroad-track, of a blocking device consisting of a block substautially U-shaped in cross-section, one of whose arms is furnished with one or more rollers, said blocking device being movable out and in, substantially as shown and described.

6. In a turntable, the combination, with the lockshait, of a wheel or roller journaled thereto, substantially as and for the purpose specified.

7. The combination, with a slotted shaft, of a spiral spring one end of which is supported by a mutilated disk placed in the slot, and means whereby the other end of said spring may be supported, substantially as shown and described.

EDMUND LYON.

Vitnesses:

\Viu. W. CHAPIN, O. D. KIEHEL. 

